diff --git a/sys/powerpc/powerpc/db_disasm.c b/sys/powerpc/powerpc/db_disasm.c
index c0478e8d4cf..37a12252e0d 100644
--- a/sys/powerpc/powerpc/db_disasm.c
+++ b/sys/powerpc/powerpc/db_disasm.c
@@ -127,7 +127,9 @@ const struct opcode opcodes[] = {
 	{ "cmpdi",	0xfc200000, 0x2c200000, Op_crfD | Op_A | Op_SIMM },
 	{ "addic",	0xfc000000, 0x30000000, Op_D | Op_A | Op_SIMM },
 	{ "addic.",	0xfc000000, 0x34000000, Op_D | Op_A | Op_SIMM },
+	{ "li",		0xfc1f0000, 0x38000000, Op_D | Op_SIMM },
 	{ "addi",	0xfc000000, 0x38000000, Op_D | Op_A | Op_SIMM },
+	{ "lis",	0xfc1f0000, 0x3c000000, Op_D | Op_SIMM },
 	{ "addis",	0xfc000000, 0x3c000000, Op_D | Op_A | Op_SIMM },
 	{ "b",		0xfc000000, 0x40000000, Op_BC | Op_BD | Op_AA | Op_LK }, /* bc */
 	{ "sc",		0xffffffff, 0x44000002, 0 },
@@ -137,8 +139,10 @@ const struct opcode opcodes[] = {
 	{ "rlwinm",	0xfc000000, 0x54000000, Op_S | Op_A | Op_SH | Op_MB | Op_ME | Op_Rc },
 	{ "rlwnm",	0xfc000000, 0x5c000000, Op_S | Op_A | Op_SH | Op_MB | Op_ME | Op_Rc },
 
+	{ "nop",	0xffffffff, 0x60000000, 0 },
 	{ "ori",	0xfc000000, 0x60000000, Op_S | Op_A | Op_UIMM },
 	{ "oris",	0xfc000000, 0x64000000, Op_S | Op_A | Op_UIMM },
+	{ "xnop",	0xffffffff, 0x68000000, 0 },
 	{ "xori",	0xfc000000, 0x68000000, Op_S | Op_A | Op_UIMM },
 	{ "xoris",	0xfc000000, 0x6c000000, Op_S | Op_A | Op_UIMM },
 
@@ -250,6 +254,7 @@ const struct opcode opcodes_1f[] = {
 	{ "adde",	0xfc0003fe, 0x7c000114, Op_D | Op_A | Op_B | Op_OE | Op_Rc },
 	{ "mtcrf",	0xfc0007fe, 0x7c000120, Op_S | Op_CRM },
 	{ "mtmsr",	0xfc0007fe, 0x7c000124, Op_S },
+	{ "mtmsrd",	0xfc0007fe, 0x7c000164, Op_S },
 	{ "stdx",	0xfc0007fe, 0x7c00012a, Op_ST | Op_A | Op_B },
 	{ "stwcx.",	0xfc0007ff, 0x7c00012d, Op_ST | Op_A | Op_B },
 	{ "stwx",	0xfc0007fe, 0x7c00012e, Op_ST | Op_A | Op_B },
@@ -272,6 +277,7 @@ const struct opcode opcodes_1f[] = {
 	{ "dcbt",	0xfc0007fe, 0x7c00022c, Op_A | Op_B },
 	{ "lhzx",	0xfc0007ff, 0x7c00022e, Op_D | Op_A | Op_B },
 	{ "eqv",	0xfc0007fe, 0x7c000238, Op_S | Op_A | Op_B | Op_Rc },
+	{ "tlbiel",	0xfc0007fe, 0x7c000224, Op_B },
 	{ "tlbie",	0xfc0007fe, 0x7c000264, Op_B },
 	{ "eciwx",	0xfc0007fe, 0x7c00026c, Op_D | Op_A | Op_B },
 	{ "lhzux",	0xfc0007fe, 0x7c00026e, Op_D | Op_A | Op_B },